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Merge pull request #2629 from nickvergessen/ticket/12747

[ticket/12747] Drop support for Firebird

* nickvergessen/ticket/12747:
  [ticket/12747] Remove some methods which are not used anymore
  [ticket/12747] Drop support for Firebird

Conflicts:
	phpBB/phpbb/db/driver/firebird.php
This commit is contained in:
Andreas Fischer
2014-06-22 23:41:14 +02:00
26 changed files with 9 additions and 1165 deletions

View File

@@ -1,534 +0,0 @@
<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\db\driver;
/**
* Firebird/Interbase Database Abstraction Layer
* Minimum Requirement is Firebird 2.1
*/
class firebird extends \phpbb\db\driver\driver
{
var $last_query_text = '';
var $service_handle = false;
var $affected_rows = 0;
var $connect_error = '';
/**
* {@inheritDoc}
*/
function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false)
{
$this->persistency = $persistency;
$this->user = $sqluser;
$this->server = $sqlserver . (($port) ? ':' . $port : '');
$this->dbname = str_replace('\\', '/', $database);
// There are three possibilities to connect to an interbase db
if (!$this->server)
{
$use_database = $this->dbname;
}
else if (strpos($this->server, '//') === 0)
{
$use_database = $this->server . $this->dbname;
}
else
{
$use_database = $this->server . ':' . $this->dbname;
}
if ($this->persistency)
{
if (!function_exists('ibase_pconnect'))
{
$this->connect_error = 'ibase_pconnect function does not exist, is interbase extension installed?';
return $this->sql_error('');
}
$this->db_connect_id = @ibase_pconnect($use_database, $this->user, $sqlpassword, false, false, 3);
}
else
{
if (!function_exists('ibase_connect'))
{
$this->connect_error = 'ibase_connect function does not exist, is interbase extension installed?';
return $this->sql_error('');
}
$this->db_connect_id = @ibase_connect($use_database, $this->user, $sqlpassword, false, false, 3);
}
// Do not call ibase_service_attach if connection failed,
// otherwise error message from ibase_(p)connect call will be clobbered.
if ($this->db_connect_id && function_exists('ibase_service_attach') && $this->server)
{
$this->service_handle = @ibase_service_attach($this->server, $this->user, $sqlpassword);
}
else
{
$this->service_handle = false;
}
return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error('');
}
/**
* {@inheritDoc}
*/
function sql_server_info($raw = false, $use_cache = true)
{
/**
* force $use_cache false. I didn't research why the caching code there is no caching code
* but I assume its because the IB extension provides a direct method to access it
* without a query.
*/
$use_cache = false;
if ($this->service_handle !== false && function_exists('ibase_server_info'))
{
return @ibase_server_info($this->service_handle, IBASE_SVC_SERVER_VERSION);
}
return ($raw) ? '2.1' : 'Firebird/Interbase';
}
/**
* SQL Transaction
* @access private
*/
function _sql_transaction($status = 'begin')
{
switch ($status)
{
case 'begin':
return true;
break;
case 'commit':
return @ibase_commit();
break;
case 'rollback':
return @ibase_rollback();
break;
}
return true;
}
/**
* {@inheritDoc}
*/
function sql_query($query = '', $cache_ttl = 0)
{
if ($query != '')
{
global $cache;
// EXPLAIN only in extra debug mode
if (defined('DEBUG'))
{
$this->sql_report('start', $query);
}
else if (defined('PHPBB_DISPLAY_LOAD_TIME'))
{
$this->curtime = microtime(true);
}
$this->last_query_text = $query;
$this->query_result = ($cache && $cache_ttl) ? $cache->sql_load($query) : false;
$this->sql_add_num_queries($this->query_result);
if ($this->query_result === false)
{
$array = array();
// We overcome Firebird's 32767 char limit by binding vars
if (strlen($query) > 32767)
{
if (preg_match('/^(INSERT INTO[^(]++)\\(([^()]+)\\) VALUES[^(]++\\((.*?)\\)$/s', $query, $regs))
{
if (strlen($regs[3]) > 32767)
{
preg_match_all('/\'(?:[^\']++|\'\')*+\'|[\d-.]+/', $regs[3], $vals, PREG_PATTERN_ORDER);
$inserts = $vals[0];
unset($vals);
foreach ($inserts as $key => $value)
{
if (!empty($value) && $value[0] === "'" && strlen($value) > 32769) // check to see if this thing is greater than the max + 'x2
{
$inserts[$key] = '?';
$array[] = str_replace("''", "'", substr($value, 1, -1));
}
}
$query = $regs[1] . '(' . $regs[2] . ') VALUES (' . implode(', ', $inserts) . ')';
}
}
else if (preg_match('/^(UPDATE ([\\w_]++)\\s+SET )([\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|\\d+)(?:,\\s*[\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+))*+)\\s+(WHERE.*)$/s', $query, $data))
{
if (strlen($data[3]) > 32767)
{
$update = $data[1];
$where = $data[4];
preg_match_all('/(\\w++)\\s*=\\s*(\'(?:[^\']++|\'\')*+\'|[\d-.]++)/', $data[3], $temp, PREG_SET_ORDER);
unset($data);
$cols = array();
foreach ($temp as $value)
{
if (!empty($value[2]) && $value[2][0] === "'" && strlen($value[2]) > 32769) // check to see if this thing is greater than the max + 'x2
{
$array[] = str_replace("''", "'", substr($value[2], 1, -1));
$cols[] = $value[1] . '=?';
}
else
{
$cols[] = $value[1] . '=' . $value[2];
}
}
$query = $update . implode(', ', $cols) . ' ' . $where;
unset($cols);
}
}
}
if (!function_exists('ibase_affected_rows') && (preg_match('/^UPDATE ([\w_]++)\s+SET [\w_]++\s*=\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+)(?:,\s*[\w_]++\s*=\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+))*+\s+(WHERE.*)?$/s', $query, $regs) || preg_match('/^DELETE FROM ([\w_]++)\s*(WHERE\s*.*)?$/s', $query, $regs)))
{
$affected_sql = 'SELECT COUNT(*) as num_rows_affected FROM ' . $regs[1];
if (!empty($regs[2]))
{
$affected_sql .= ' ' . $regs[2];
}
if (!($temp_q_id = @ibase_query($this->db_connect_id, $affected_sql)))
{
return false;
}
$temp_result = @ibase_fetch_assoc($temp_q_id);
@ibase_free_result($temp_q_id);
$this->affected_rows = ($temp_result) ? $temp_result['NUM_ROWS_AFFECTED'] : false;
}
if (sizeof($array))
{
$p_query = @ibase_prepare($this->db_connect_id, $query);
array_unshift($array, $p_query);
$this->query_result = call_user_func_array('ibase_execute', $array);
unset($array);
if ($this->query_result === false)
{
$this->sql_error($query);
}
}
else if (($this->query_result = @ibase_query($this->db_connect_id, $query)) === false)
{
$this->sql_error($query);
}
if (defined('DEBUG'))
{
$this->sql_report('stop', $query);
}
else if (defined('PHPBB_DISPLAY_LOAD_TIME'))
{
$this->sql_time += microtime(true) - $this->curtime;
}
if (!$this->transaction)
{
if (function_exists('ibase_commit_ret'))
{
@ibase_commit_ret();
}
else
{
// way cooler than ibase_commit_ret :D
@ibase_query('COMMIT RETAIN;');
}
}
if ($cache && $cache_ttl)
{
$this->open_queries[(int) $this->query_result] = $this->query_result;
$this->query_result = $cache->sql_save($this, $query, $this->query_result, $cache_ttl);
}
else if (strpos($query, 'SELECT') === 0 && $this->query_result)
{
$this->open_queries[(int) $this->query_result] = $this->query_result;
}
}
else if (defined('DEBUG'))
{
$this->sql_report('fromcache', $query);
}
}
else
{
return false;
}
return $this->query_result;
}
/**
* Build LIMIT query
*/
function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0)
{
$this->query_result = false;
$query = 'SELECT FIRST ' . $total . ((!empty($offset)) ? ' SKIP ' . $offset : '') . substr($query, 6);
return $this->sql_query($query, $cache_ttl);
}
/**
* {@inheritDoc}
*/
function sql_affectedrows()
{
// PHP 5+ function
if (function_exists('ibase_affected_rows'))
{
return ($this->db_connect_id) ? @ibase_affected_rows($this->db_connect_id) : false;
}
else
{
return $this->affected_rows;
}
}
/**
* {@inheritDoc}
*/
function sql_fetchrow($query_id = false)
{
global $cache;
if ($query_id === false)
{
$query_id = $this->query_result;
}
if ($cache && $cache->sql_exists($query_id))
{
return $cache->sql_fetchrow($query_id);
}
if ($query_id === false)
{
return false;
}
$row = array();
$cur_row = @ibase_fetch_object($query_id, IBASE_TEXT);
if (!$cur_row)
{
return false;
}
foreach (get_object_vars($cur_row) as $key => $value)
{
$row[strtolower($key)] = (is_string($value)) ? trim(str_replace(array("\\0", "\\n"), array("\0", "\n"), $value)) : $value;
}
return (sizeof($row)) ? $row : false;
}
/**
* {@inheritDoc}
*/
function sql_nextid()
{
$query_id = $this->query_result;
if ($query_id !== false && $this->last_query_text != '')
{
if ($this->query_result && preg_match('#^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)#i', $this->last_query_text, $tablename))
{
$sql = 'SELECT GEN_ID(' . $tablename[1] . '_gen, 0) AS new_id FROM RDB$DATABASE';
if (!($temp_q_id = @ibase_query($this->db_connect_id, $sql)))
{
return false;
}
$temp_result = @ibase_fetch_assoc($temp_q_id);
@ibase_free_result($temp_q_id);
return ($temp_result) ? $temp_result['NEW_ID'] : false;
}
}
return false;
}
/**
* {@inheritDoc}
*/
function sql_freeresult($query_id = false)
{
global $cache;
if ($query_id === false)
{
$query_id = $this->query_result;
}
if ($cache && !is_object($query_id) && $cache->sql_exists($query_id))
{
return $cache->sql_freeresult($query_id);
}
if (isset($this->open_queries[(int) $query_id]))
{
unset($this->open_queries[(int) $query_id]);
return @ibase_free_result($query_id);
}
return false;
}
/**
* {@inheritDoc}
*/
function sql_escape($msg)
{
return str_replace(array("'", "\0"), array("''", ''), $msg);
}
/**
* Build LIKE expression
* @access private
*/
function _sql_like_expression($expression)
{
return $expression . " ESCAPE '\\'";
}
/**
* Build db-specific query data
* @access private
*/
function _sql_custom_build($stage, $data)
{
return $data;
}
function _sql_bit_and($column_name, $bit, $compare = '')
{
return 'BIN_AND(' . $column_name . ', ' . (1 << $bit) . ')' . (($compare) ? ' ' . $compare : '');
}
function _sql_bit_or($column_name, $bit, $compare = '')
{
return 'BIN_OR(' . $column_name . ', ' . (1 << $bit) . ')' . (($compare) ? ' ' . $compare : '');
}
/**
* {@inheritDoc}
*/
function cast_expr_to_bigint($expression)
{
// Precision must be from 1 to 18
return 'CAST(' . $expression . ' as DECIMAL(18, 0))';
}
/**
* {@inheritDoc}
*/
function cast_expr_to_string($expression)
{
return 'CAST(' . $expression . ' as VARCHAR(255))';
}
/**
* return sql error array
* @access private
*/
function _sql_error()
{
// Need special handling here because ibase_errmsg returns
// connection errors, however if the interbase extension
// is not installed then ibase_errmsg does not exist and
// we cannot call it.
if (function_exists('ibase_errmsg'))
{
$msg = @ibase_errmsg();
if (!$msg)
{
$msg = $this->connect_error;
}
}
else
{
$msg = $this->connect_error;
}
return array(
'message' => $msg,
'code' => (@function_exists('ibase_errcode') ? @ibase_errcode() : '')
);
}
/**
* Close sql connection
* @access private
*/
function _sql_close()
{
if ($this->service_handle !== false)
{
@ibase_service_detach($this->service_handle);
}
return @ibase_close($this->db_connect_id);
}
/**
* Build db-specific report
* @access private
*/
function _sql_report($mode, $query = '')
{
switch ($mode)
{
case 'start':
break;
case 'fromcache':
$endtime = explode(' ', microtime());
$endtime = $endtime[0] + $endtime[1];
$result = @ibase_query($this->db_connect_id, $query);
while ($void = @ibase_fetch_object($result, IBASE_TEXT))
{
// Take the time spent on parsing rows into account
}
@ibase_free_result($result);
$splittime = explode(' ', microtime());
$splittime = $splittime[0] + $splittime[1];
$this->sql_report('record_fromcache', $query, $endtime, $splittime);
break;
}
}
}

View File

@@ -109,36 +109,6 @@ class tools
'VARBINARY' => 'varbinary(255)',
),
'firebird' => array(
'INT:' => 'INTEGER',
'BINT' => 'DOUBLE PRECISION',
'UINT' => 'INTEGER',
'UINT:' => 'INTEGER',
'TINT:' => 'INTEGER',
'USINT' => 'INTEGER',
'BOOL' => 'INTEGER',
'VCHAR' => 'VARCHAR(255) CHARACTER SET NONE',
'VCHAR:' => 'VARCHAR(%d) CHARACTER SET NONE',
'CHAR:' => 'CHAR(%d) CHARACTER SET NONE',
'XSTEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
'STEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
'TEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
'MTEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
'XSTEXT_UNI'=> 'VARCHAR(100) CHARACTER SET UTF8',
'STEXT_UNI' => 'VARCHAR(255) CHARACTER SET UTF8',
'TEXT_UNI' => 'BLOB SUB_TYPE TEXT CHARACTER SET UTF8',
'MTEXT_UNI' => 'BLOB SUB_TYPE TEXT CHARACTER SET UTF8',
'TIMESTAMP' => 'INTEGER',
'DECIMAL' => 'DOUBLE PRECISION',
'DECIMAL:' => 'DOUBLE PRECISION',
'PDECIMAL' => 'DOUBLE PRECISION',
'PDECIMAL:' => 'DOUBLE PRECISION',
'VCHAR_UNI' => 'VARCHAR(255) CHARACTER SET UTF8',
'VCHAR_UNI:'=> 'VARCHAR(%d) CHARACTER SET UTF8',
'VCHAR_CI' => 'VARCHAR(255) CHARACTER SET UTF8',
'VARBINARY' => 'CHAR(255) CHARACTER SET NONE',
),
'mssql' => array(
'INT:' => '[int]',
'BINT' => '[float]',
@@ -331,7 +301,7 @@ class tools
* A list of supported DBMS. We change this class to support more DBMS, the DBMS itself only need to follow some rules.
* @var array
*/
var $supported_dbms = array('firebird', 'mssql', 'mssqlnative', 'mysql_40', 'mysql_41', 'oracle', 'postgres', 'sqlite', 'sqlite3');
var $supported_dbms = array('mssql', 'mssqlnative', 'mysql_40', 'mysql_41', 'oracle', 'postgres', 'sqlite', 'sqlite3');
/**
* This is set to true if user only wants to return the 'to-be-executed' SQL statement(s) (as an array).
@@ -441,13 +411,6 @@ class tools
FROM pg_stat_user_tables';
break;
case 'firebird':
$sql = 'SELECT rdb$relation_name
FROM rdb$relations
WHERE rdb$view_source is null
AND rdb$system_flag = 0';
break;
case 'oracle':
$sql = 'SELECT table_name
FROM USER_TABLES';
@@ -580,7 +543,6 @@ class tools
// Close the table for two DBMS and add to the statements
switch ($this->sql_layer)
{
case 'firebird':
case 'mssql':
case 'mssqlnative':
$table_sql .= "\n);";
@@ -610,7 +572,6 @@ class tools
$table_sql .= ",\n\t PRIMARY KEY (" . implode(', ', $table_data['PRIMARY_KEY']) . ')';
break;
case 'firebird':
case 'mssql':
case 'mssqlnative':
// We need the data here
@@ -685,19 +646,6 @@ class tools
$statements[] = $trigger;
}
break;
case 'firebird':
if ($create_sequence)
{
$statements[] = "CREATE GENERATOR {$table_name}_gen;";
$statements[] = "SET GENERATOR {$table_name}_gen TO 0;";
$trigger = "CREATE TRIGGER t_$table_name FOR $table_name\n";
$trigger .= "BEFORE INSERT\nAS\nBEGIN\n";
$trigger .= "\tNEW.{$create_sequence} = GEN_ID({$table_name}_gen, 1);\nEND;";
$statements[] = $trigger;
}
break;
}
// Write Keys
@@ -1174,12 +1122,6 @@ class tools
WHERE LOWER(table_name) = '" . strtolower($table) . "'";
break;
case 'firebird':
$sql = "SELECT RDB\$FIELD_NAME as FNAME
FROM RDB\$RELATION_FIELDS
WHERE RDB\$RELATION_NAME = '" . strtoupper($table) . "'";
break;
case 'sqlite':
case 'sqlite3':
$sql = "SELECT sql
@@ -1278,15 +1220,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
$sql = "SELECT LOWER(RDB\$INDEX_NAME) as index_name
FROM RDB\$INDICES
WHERE RDB\$RELATION_NAME = '" . strtoupper($table_name) . "'
AND RDB\$UNIQUE_FLAG IS NULL
AND RDB\$FOREIGN_KEY IS NULL";
$col = 'index_name';
break;
case 'postgres':
$sql = "SELECT ic.relname as index_name
FROM pg_class bc, pg_class ic, pg_index i
@@ -1332,7 +1265,6 @@ class tools
// These DBMS prefix index name with the table name
switch ($this->sql_layer)
{
case 'firebird':
case 'oracle':
case 'postgres':
case 'sqlite':
@@ -1385,15 +1317,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
$sql = "SELECT LOWER(RDB\$INDEX_NAME) as index_name
FROM RDB\$INDICES
WHERE RDB\$RELATION_NAME = '" . strtoupper($table_name) . "'
AND RDB\$UNIQUE_FLAG IS NOT NULL
AND RDB\$FOREIGN_KEY IS NULL";
$col = 'index_name';
break;
case 'postgres':
$sql = "SELECT ic.relname as index_name, i.indisunique
FROM pg_class bc, pg_class ic, pg_index i
@@ -1460,7 +1383,6 @@ class tools
}
break;
case 'firebird':
case 'postgres':
case 'sqlite':
case 'sqlite3':
@@ -1536,32 +1458,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
$sql .= " {$column_type} ";
$return_array['column_type_sql_type'] = " {$column_type} ";
if (!is_null($column_data[1]))
{
$sql .= 'DEFAULT ' . ((is_numeric($column_data[1])) ? $column_data[1] : "'{$column_data[1]}'") . ' ';
$return_array['column_type_sql_default'] = ((is_numeric($column_data[1])) ? $column_data[1] : "'{$column_data[1]}'") . ' ';
}
$sql .= 'NOT NULL';
// This is a UNICODE column and thus should be given it's fair share
if (preg_match('/^X?STEXT_UNI|VCHAR_(CI|UNI:?)/', $column_data[0]))
{
$sql .= ' COLLATE UNICODE';
}
$return_array['auto_increment'] = false;
if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
{
$return_array['auto_increment'] = true;
}
break;
case 'mssql':
case 'mssqlnative':
$sql .= " {$column_type} ";
@@ -1772,11 +1668,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
// Does not support AFTER statement, only POSITION (and there you need the column position)
$statements[] = 'ALTER TABLE ' . $table_name . ' ADD "' . strtoupper($column_name) . '" ' . $column_data['column_type_sql'];
break;
case 'mssql':
case 'mssqlnative':
// Does not support AFTER, only through temporary table
@@ -1894,10 +1785,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
$statements[] = 'ALTER TABLE ' . $table_name . ' DROP "' . strtoupper($column_name) . '"';
break;
case 'mssql':
case 'mssqlnative':
// We need the data here
@@ -2036,7 +1923,6 @@ class tools
$statements[] = 'DROP INDEX ' . $index_name . ' ON ' . $table_name;
break;
case 'firebird':
case 'oracle':
case 'postgres':
case 'sqlite':
@@ -2065,21 +1951,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
$sql = 'SELECT RDB$GENERATOR_NAME as gen
FROM RDB$GENERATORS
WHERE RDB$SYSTEM_FLAG = 0
AND RDB$GENERATOR_NAME = \'' . strtoupper($table_name) . "_GEN'";
$result = $this->db->sql_query($sql);
// does a generator exist?
if ($row = $this->db->sql_fetchrow($result))
{
$statements[] = "DROP GENERATOR {$row['gen']};";
}
$this->db->sql_freeresult($result);
break;
case 'oracle':
$sql = 'SELECT A.REFERENCED_NAME
FROM USER_DEPENDENCIES A, USER_TRIGGERS B
@@ -2125,7 +1996,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
case 'postgres':
case 'mysql_40':
case 'mysql_41':
@@ -2217,7 +2087,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
case 'postgres':
case 'oracle':
case 'sqlite':
@@ -2261,7 +2130,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
case 'postgres':
case 'oracle':
case 'sqlite':
@@ -2320,15 +2188,6 @@ class tools
{
switch ($this->sql_layer)
{
case 'firebird':
$sql = "SELECT LOWER(RDB\$INDEX_NAME) as index_name
FROM RDB\$INDICES
WHERE RDB\$RELATION_NAME = '" . strtoupper($table_name) . "'
AND RDB\$UNIQUE_FLAG IS NULL
AND RDB\$FOREIGN_KEY IS NULL";
$col = 'index_name';
break;
case 'postgres':
$sql = "SELECT ic.relname as index_name
FROM pg_class bc, pg_class ic, pg_index i
@@ -2373,7 +2232,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
case 'oracle':
case 'postgres':
case 'sqlite':
@@ -2400,20 +2258,6 @@ class tools
switch ($this->sql_layer)
{
case 'firebird':
// Change type...
if (!empty($column_data['column_type_sql_default']))
{
$statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN "' . strtoupper($column_name) . '" TYPE ' . ' ' . $column_data['column_type_sql_type'];
$statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN "' . strtoupper($column_name) . '" SET DEFAULT ' . ' ' . $column_data['column_type_sql_default'];
}
else
{
// TODO: try to change pkey without removing trigger, generator or constraints. ATM this query may fail.
$statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN "' . strtoupper($column_name) . '" TYPE ' . ' ' . $column_data['column_type_sql_type'];
}
break;
case 'mssql':
case 'mssqlnative':
// We need the data here